Filtyp
Numerical analysis, such as the finite element method is the most used computational procedure for nonlinear deformation and strength analysis of structures. In order to obtain meaningful results the material behaviour must be described and simulated accurately. Another important element in order to perform the simulation is a robust and accurate numerical integration algorithm. The present paper
We investigating the role of anticipation and attention in a dynamic environment in a number of large scale simulations of an agent that tries to negotiate a number of gates that continuously open and close. In particular we have looked at learning mechanisms that can predict the future positions of the gates and control strategies that will allow the agent to pass through the gates unharmed. The
The present dissertation delineates how the fairy tale character, Little Red Riding Hood, has appeared in different screen versions. It is a thematic and historical analysis of the development of film versions and other traces of the story 1901 to 2001, focussing particulary on the representation of Red Riding Hood herself. The story of this little girl, mostly dressed in different red garments, i
This article deals with the early development of the Jesus prayer in Early Christian monasticism of the 4th to the 7th century. It proceeds in two steps. First, a quite uniform matrix of practices and aims related to three early monastic authors (John Cassian, Diadochus of Photike, and John Climacus) is discerned. It is evident that the practice is not clearly defined in this period. It is also ap
The Sound Area, located between Sweden and Denmark, is one of the most intensely trafficked waters in the world with complex traffic patterns and a bridge/tunnel under construction, which will link the two countries. This high level of complexity increases the probability of both maritime accidents and very negative consequences of them. This paper presents the ergonomic part of an ongoing multidi
This chapter provides a physical background to the following ones. It describes the particle and wave properties of light and the diffraction, polarization, refraction, reflection, and absorption of light and statistics of photon emission and absorption. Planck’s law of heat radiation is described in various mathematical and graphical ways. One section is devoted to a simplified description of the
In many reports the improvements of the actors in the construction sector have been requested. One explicit factor that has been called for is an increase in cooperation and communication between the different actors. The Swedish construction sector in general has not been swift in accepting new process improvements as they have been put forward by academics or government. There are many possible
For years tools and techniques such as Brainstorming, Mind-Maps and Rich Pictures have been used in both academic and professional practices to assist people with making sense of complex problem spaces. These tools have their supporters and in many cases their uses can be argued to be interchangeable. Seldom however have they been systematically applied in combination in theory or practice. Even t
The complement system plays an important role in eliminating invading pathogens. Activation of complement results in C3b deposition (opsonization), phagocytosis, anaphylatoxin (C3a, C5a) release, and consequently cell lysis. Moraxella catarrhalis is a human respiratory pathogen commonly found in children with otitis media and in adults with chronic obstructive pulmonary disease. The species has ev
The transforming growth factor (TGF)-beta superfamily of growth factors, including the TGF-betas, activins, and bone morphogenetic proteins (BMPs), provide cells with a broad spectrum of regulatory signals through the intracellular Smad pathway. Since loss-of-function studies of a majority of the TGF-beta superfamily members result in embryonic lethality, much of our current knowledge of the TGF-b
One of the major roles of seminal plasma is to provide antimicrobial protection for the spermatozoa in the female reproductive tract. We found that the bactericidal activity of seminal plasma was highest after resolution of the seminal clot and that this antibacterial activity subsequently became greatly diminished. The antibacterial activity was derived from peptides generated by fragmentation of
To identify risk factors for Clostridium difficile infection (CDI) in Danish patients consulting general practice with gastrointestinal symptoms, a prospective matched case-control study was performed; cases (N=259) had positive cultures for toxigenic C. difficile and controls (N=455) negative cultures. Data were analysed by conditional logistic regression. In patients aged 2 years (138 cases), ho
Only in Sweden, single-family houses account for approximately 30% of energy use in all buildings and a large part uses only electricity for heating. The potential for improvements on energy efficiency in these houses is large. This study theoretically investigates retrofitting of electrically heated Swedish single-family houses by using an air-source heat pump for both space heating and domestic
Water uptake on aerosol and cloud particles in the atmosphere modifies their chemistry and microphysics with important implications for climate on Earth. Here, we apply an environmental molecular beam (EMB) method to characterize water accommodation on ice and organic surfaces. The adsorption of surface-active compounds including short-chain alcohols, nitric acid, and acetic acid significantly aff
